Home / 103,237.68-154,465.16-61,140.36

Finding the Fourth Proportional to 103,237.68, 154,465.16 and 61,140.36

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Solution

The fourth proportional to 103,237.68, 154,465.16 and 61,140.36 is: 91,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,237.68 : 154,465.16 = 61,140.36 : x
  2. Step 2: Convert to fraction form
    103,237.68/154,465.16 = 61,140.36/x
  3. Step 3: Cross multiply
    103,237.68x = 154,465.16 × 61,140.36
  4. Step 4: Simplify right side
    103,237.68x = 9,444,055,184.16
  5. Step 5: Solve for x
    x = 9,444,055,184.16/103,237.68
  6. Step 6: Final answer
    x = 91,478.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.